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Finding the Fourth Proportional to 329,851.10, 455,195.40 and 178,948.10

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Solution

The fourth proportional to 329,851.10, 455,195.40 and 178,948.10 is: 246,948.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,851.10 : 455,195.40 = 178,948.10 : x
  2. Step 2: Convert to fraction form
    329,851.10/455,195.40 = 178,948.10/x
  3. Step 3: Cross multiply
    329,851.10x = 455,195.40 × 178,948.10
  4. Step 4: Simplify right side
    329,851.10x = 81,456,352,425.67
  5. Step 5: Solve for x
    x = 81,456,352,425.67/329,851.10
  6. Step 6: Final answer
    x = 246,948.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.